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Alignment & Troubleshooting
Service Manual
4-135
Samsung Electronics
Foreign matter stuck onto
the window of internal lenses of LSU mirror.
Clean the LSU window with recommended cleaner(IPA
) Clean the window with a clean
cotton swab.
Check where vertical white line is located.
Foreign matter or toner particles between the
magnetic roller and doctor
blade
.
Replace the drum cartridge and try again to print out.
It may occur when Burr and foreign substances are on the window of the drum cartridge frame.
Remove the foreign matter and burr of the exposure window. (the drum cartridge frame)
If the fuser is defective, voids occur periodically at the top of a black image.
Open the right cover and check ribs that corresponds to the position of the voids.
Remove if found.
If the problems are not solved, replace the drum cartridge.
NO
YES
NO
NO
YES
YES
YES
[ Descripition
]
White vertical voids in the image.
[
Wrong Part ]
1. LSU
2. Drum Cartridge
Vertical White Line
CÓPIA NÃO CONTROLADA
CÓPIA NÃO CONTROLADA